Samsung ML-1700 SMPSSwitching Mode Power Supply, AC Input, Rated Power Output, Consumption Power

S U M M A RY OF PRO D U C T

4.5.2 SMPS(Switching Mode Power Supply)

It is the power source for the whole system. It is an independent module, so it is possible to use for com- mon use. It is mounted at the bottom of the set.

It is consisted of the SMPS part, which supplies the DC power for driving the system, and the AC heater control part, which supplies the power to fuser. SMPS has three outputting channels (3.3V, +5V and +24V). There are three kinds of power, 120V exclusive (America), 220V exclusive (Europe), and 220V for china (nations with instable power supply).

1)AC Input

-Inputting rated voltage : AC 220V ~ 240V AC 120V / AC 220V

-Inputting voltage fluctuating range : AC 198V ~ 264V AC 90V ~ 135V / AC 198V ~ 264V

-Rated frequency : 50/60 Hz

-Frequency fluctuating range : 47 ~ 63 Hz

-Inputting voltage : Under 4.0Arms/2.0Arms

(The state when lamp is off or rated voltage is inputted/outputted)

2)Rated Power Output

NO	Item	CH1	CH2	CH3	Remark
1	Channel name	+3.3V	+5V	+24.0V
2	CONNECTOR PIN	CON 3	CON3	CON 3
		3.3V PIN: 3, 4	5V PIN : 8	24V PIN: 11, 12, 13
		GND PIN: 5, 6	GND PIN: 7	GND : 9. 10
3	Rated outputting voltage	3.3V ± 5%	+5V ± 5%	+24V ± 10%
		(3.2 ~ 3.4V)	(4.75 ~ 5.25V)	(21.6 ~ 26.4V)
4	Maximum outputting voltage	1.0 A	0.14A	2.0 A
5	Peak loading voltage	1.5 A	0.14A	2.0 A	1ms
6	Ripple noise voltage	100mVp-p	100mVp-p	500mVp-p
7	Maximum output	3.3W	0.35W	48W
8	Peak output	4.95W	0.7W	60W	1ms
9	Uses	Logic part	LSU LD	Main Motor
				HVPS
				Solenoid
				Fan

3) Consumption Power

NO	Item	CH1	CH2	CH3	System
		(+3.3V)	(+5V)	(+24V)
1	Stand-By	1.0 A	0.07A	0.4 A	AVG : 55 Wh
2	PRINTING	1.0 A	0.14A	2.0 A	AVG : 250 Wh
3	Sleep-Mode	0.8A	0.01A	0.4A	AVG : 10 Wh

4)Length of Power Cord : 1830 ± 50mm

5)Power Switch : Use

Training Manual

4-18

Samsung Electronics